This would basicly be a vehicles or JV you can mount to and swing on. This would if made come with designs and different length "ropes" technically the brick length or height itself.
Swing: If the W or up arrow key or whatever you have keybinded as forward would swing the swing forward/faster. On hitting the S or down arrow key or whatever you have keybinded as backwards wouls slow it down.
Hammock: The left and right arrow keys can be pushed in an order left,right,left or right,left,right To pick up speed to slow down all you would have to do is stop doing the command and it will gently rock back and forth by itself until it stops by itself or the command to pick up speed is used again.
Please reply I would very much appreciate it if this were made! And no I'm not gonna be a noob and say: Omgee FREE Cookehs!! FOrYuh
Saying /support!! is appreciated also